The number of species of organisms currently known to science is?

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The name Bacteriophage was coined by____________?

A. Charles Chamberland B. Ivanowski C. Twort D. D Herelle...

One of the commonest cause of food poisoning are the toxins produced by__________?

A. Azobacter B. Nitrosomonas C. Campylobacter D. Nitrobacter...

Fungi can tolerate pH from____________?

A. 3-7 B. 2-6 C. 2-9 D. 3-6...

Which of the following structure is not present in all the bacteria_____________?

A. Cell membrane B. Chromatin bodies C. Ribosomes D. Capsule...

All of the following coelenterates show alternation of generation except:

A. Hydra B. Obelia C. Aurelia D. None of these...